Finding the Fourth Proportional to 9,064.34, 12,508.76 and 5,085.45

Step by Step Solution

1. Step 1: Write the proportion equation
   9,064.34 : 12,508.76 = 5,085.45 : x
2. Step 2: Convert to fraction form
   9,064.34/12,508.76 = 5,085.45/x
3. Step 3: Cross multiply
   9,064.34x = 12,508.76 × 5,085.45
4. Step 4: Simplify right side
   9,064.34x = 63,612,686.26
5. Step 5: Solve for x
   x = 63,612,686.26/9,064.34
6. Step 6: Final answer
   x = 7,017.91